20 Useful java cheat sheets pdf every developer should explore

Java is one of the most popular programming language for developing application software and deploying it in cross-platform computing environment. Most important, Java is the third most popular language on Github, after JavaScript and Python. For beginners, programming cheat sheet, or Java cheat sheets pdf helps both saving a lot of time and accomplish a particular task. In this article, we have gathered some of the most useful as well as complete Java cheat sheets pdf that will increase your productivity.

1. OverAPI Java

java cheat sheets pdf

Format: OnlineWebpage

Above all, OverAPI contains almost all basic and commonly used elements of data structure, string, object oriented topic, and classes. To clarify, clicking on each element would take you to the new webpage that provides the description of the element (that you’ve clicked) along with examples.

2. Using XML in Java

java cheat sheets pdf

Format: PDF and OnlineWebpage

Since Java is a diverse platform, it has numerous solutions for working with XML. 

3. Java Collections Cheat Sheets PDF

java cheat sheets pdf

Format: PDF

In addition, all Java programs have one thing in common – they all use Java collections. To clarify, this brief cheat sheet will help you know about the collections framework, correct use cases, implementation details as well as how to choose the appropriate collection type.

4. Java 8 Best Practices

java cheat sheets pdf

Format: PDF and OnlineWebpage

Above all, this cheat sheet (created by Rebellabs) uncovers the hot topics of the Java 8 – default methods, lambdas, streams and using optional to represent absent values.

5. Java For Dummies on Java Cheat Sheets PDF List

Format: OnlineWebpage

Most important, you can divide your Java program into several categories. This cheat sheet would also tell you about all those categories.

6. Core Java Concurrency

 Java cheat sheets pdf

Format: PDF and OnlineWebpage

Most important, it’s a long Java cheat sheets pdf that helps programmers working with multi-threaded code understand the concepts of core concurrency and how to apply them. It covers inbuilt Java features such as thread, concurrent collections, Locks, thread coordination abstraction and executors.

7. Java Generics Cheat Sheet

Java cheat sheets

Format: PDF

Java Generic cheat sheet provides an overview Generic basics, wildcards, intersection types, method overloading, recursive generics as well as covariance.

8. Java Glossary

Format: OnlineWebpage

This is a quick summary of the Java language syntax. Above all, it only contains the elements that you may be likely to forget. For example, control structure, literals, links, primitives, immutable, Javadoc, and more.

9. Core Java on Java Cheat Sheets PDF

Format: PDF and OnlineWebpage

The Java cheat sheets pdf gives you an overview of key aspects of the Java language and references on the core library, most commonly used both tools and new Java 8 features.

10. Java 8+ Cheat Sheets PDF

Format: OnlineWebpage

This cheat sheet is based on Cay Horstmann’s lecture (who has written more than dozen of programming books for students and professionals). Moreover, it is published on Github and includes lambda expression, collections, streams and optional information.

11. Java GUI Development

 Java cheat sheets pdf

Format: PDF and OnlineWebpage

To build standalone Java applications, one can use either SWT (Standard Widget Toolkit) or Java Swing. Both methods share some commonality, but each has its own benefits. So that this reference guide will help you get started with either.

12. Java Vs. Python

 Java cheat sheets pdf

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We all have seen big debates between static as well as dynamic typing among many programming languages.

13. Java Elements

Format: JPG and OnlineWebpage

Keep this cheat sheet for a quick reference while learning Java. It also contains the basic code structure, data types, functions and inputs and outputs.

14. Java Cheat Sheet for C++ Programmers

Format: PDF and OnlineWebpage

As the name suggests, the Java cheat sheets pdf is for those who regularly code in C++ language as well as all of the sudden have switched to Java. To clarify, it explains the concept of Java by comparing it with the concepts of C++. Moreover, it also shows what Java has that C++ don’t and vice versa.

15. Java OOP Concept

 Java cheat sheets pdf

Format: PDF and OnlineWebpage

To clarify, this cheat sheet contains all elements that will strengthen your understanding on Java object oriented programming paradigm. It also contains the basic components, including inheritance, override, encapsulation, HashMap, HashList, interface, attribute and access modifier, and constructor.

16. Java Fundamentals Cheat Sheet

Format: PDF and OnlineWebpage

It’s a small and very basic cheat sheet for beginners, which includes Java data types, conversions, string methods, arithmetic operator as well as text formatting details.

17. Java Midterm Cheat Sheet – a brief cheat sheet on Java cheat sheets pdf list

Format: PDF and OnlineWebpage

This is a brief cheat sheet containing String methods, abstract classes, interface, array methods, vocabulary, loops, math method, escape sequence and much more.

18. Java EE Security Essentials – A detailed one in Java cheat sheets pdf

Format: PDF and OnlineWebpage

This is a detailed Java cheat sheets pdf that explores web module security, authentication authorization, application client security as well as EJB module security with in-depth examples.

19. Java Quick Reference

Format: PDF

It’s basic cheat sheet for beginners to check out logical operators, flow control, array and class syntax, arithmetic operators, keywords as well as Java extension packages.

20. APIs of Common Libraries

java cheat sheets pdf

Format: OnlineWebpage

This cheat sheets summarizes the most commonly used Java language features, including, math library, Java library cells, type conversion, anatomy of while-loop, break statements, arrays, command line, graphs, redirection and piping.

To Sum Up With Java cheat sheets pdf

Finally, this Java cheat sheets pdf list will be updated. We hope you can choose your best one.

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